N-input
n-layer
n-level
n-n
n-n-n
no
n-on-n
n-on-p
n-order
n-p
  n-phase
n-photon
n-p-i-n
n-p-i-p
n-p-n
n-p-n-n
n-p-n-p
n-pole
n-port
n-quantum
n-region